Our lungs are surrounded by bones and it keeps the lungs in place.
Not Smoking.
keeps them working stupid why else lungs power brain, brain controls lungs and others
Cillia are small hairs that have the function of "sweeping" tubes in our bodies. The cillia in our lungs sweep dust and other impurities towards our throat. Usually at night and in our sleep we cough or clear our throat and swallow this mucous. Yuk, but keeps our lungs clean.
The lungs do not clean dirty blood, although they do allow excess carbon dioxide to escape into the air. Dirty blood is filtered by the kidneys, not the lungs.
epiglottis
The lungs do not clean dirty blood, although they do allow excess carbon dioxide to escape into the air. Dirty blood is filtered by the kidneys, not the lungs.
The epiglottis
Cartilage keeps bronchi open
help u breathe The respiratory system includes the heart and lungs. The lungs take in oxygen which pumps blood through the whole human body and to the heart. This process keeps the heart pumping which keeps you alive.
Water
whats prevents food from going down your lungs